Amtrol: Extrol Diaphragm Tanks

Extrol ASME commercial expansion tanks are designed to control pressure in closed hydronic heating systems. Available in diaphragm, partial acceptance bladder and full acceptance bladder designs, these tanks range in size from 8 gallons (30 liters) to 3,963 gallons (15,000 liters). Offered with maximum working pressures up to 300 PSIG (21 bar), Extrol is effective at maintaining positive pressure in a wide variety of HVAC systems.

Amtrol Extrol Diaphragm Tanks Features

• Diaphragm design; industry’s thickest.
• Horizontal and vertical models are available with optional restraints.
• Factory pre-charge: 12 psig.
• Maximum operating temperature: 240° F.

Amtrol Extrol Diaphragm Tanks Specifications

Amtrol Extrol Diaphragm Tanks Manual & Submittals

• Horizontal AX Series (ASME) – 125 PSIG Submittal
• Horizontal AX Series (ASME) – 150 PSIG Submittal
• Horizontal AX Series (ASME) – 175 PSIG Submittal
• Horizontal AX Series (ASME) – 250 PSIG Submittal
• Horizontal AX Series (ASME) – 300 PSIG Submittal
• Vertical AX Series (ASME) – 125 PSIG Submittal
• Vertical AX Series (ASME) – 150 PSIG Submittal
• Vertical AX Series (ASME) – 175 PSIG Submittal
• Vertical AX Series (ASME) – 250 PSIG Submittal
• Vertical AX Series (ASME) – 300 PSIG Submittal